Android Open Source - nwcloud-androidgcm-app N W Cloud Backend

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License

The source code is released under:

Apache License

Java Source Code

package org.sapmentors.nwcloud.gcm.backend;
/*from  ww w.ja v  a  2  s.  c  o  m*/
import java.io.IOException;
import java.net.URLEncoder;
import java.util.List;

import org.sapmentors.nwcloud.gcm.model.PushMessageResponse;
import org.sapmentors.nwcloud.gcm.util.AndroidUtils;

import android.content.Context;
import android.util.Log;

import com.google.api.client.http.GenericUrl;
import com.google.api.client.http.HttpRequest;
import com.google.api.client.http.HttpRequestFactory;
import com.google.api.client.http.HttpRequestInitializer;
import com.google.api.client.http.HttpResponse;
import com.google.api.client.http.HttpTransport;
import com.google.api.client.http.javanet.NetHttpTransport;
import com.google.api.client.http.json.JsonHttpContent;
import com.google.api.client.json.JsonFactory;
import com.google.api.client.json.JsonObjectParser;
import com.google.api.client.json.jackson2.JacksonFactory;
import com.google.api.client.util.Key;

/**
 * This class handles the interface to the NWCloud backend.
 * 
 * The interface is REST based, and the code below uses the google-http-java-client
 * libraries
 * 
 * 
 * @author dagfinn.parnas
 *
 */
public class NWCloudBackend {
  protected static final String LOG_PREFIX = "NWCLOUD-GCM";
  protected static final String NWCLOUD_BACKEND_URL="https://androidgcmbackendp013234trial.nwtrial.ondemand.com/nwcloud-androidgcm-backend/";
  protected static final String LOCAL_BACKEND_URL = "http://192.168.1.6:8080/nwcloud-androidgcm-backend/";
  
  //Use this to switch which backend you want to use
  protected static final String BASE_BACKEND_URL= NWCLOUD_BACKEND_URL;
  
  
  protected static final HttpTransport HTTP_TRANSPORT = new NetHttpTransport();
  protected static final JsonFactory JSON_FACTORY = new JacksonFactory();
  
  
  /**
   * Persist the device in the cloud backend
   * 
   * @param email
   * @param registrationKey
   */
  public static void persistDevice(String email, String registrationKey) {
    HttpRequestFactory requestFactory =
            HTTP_TRANSPORT.createRequestFactory(new HttpRequestInitializer() {
                @Override
              public void initialize(HttpRequest request) {
                request.setParser(new JsonObjectParser(JSON_FACTORY));
              }
            });
    //the endpoint of the REST service
    GenericUrl url = new GenericUrl(BASE_BACKEND_URL +"api/mobiledevice/");
    
    //The data (to be converted to JSON)
    MobileDevice androidDevice = new MobileDevice(email, registrationKey, MobileDevice.ANDROID_MOBILE_PLATFORM);
    
    JsonHttpContent jsonContent = new JsonHttpContent(JSON_FACTORY, androidDevice);
      
    HttpRequest request;
    try {
      request = requestFactory.buildPostRequest(url, jsonContent);
      HttpResponse response  = request.execute();
      String strResponse = response.parseAsString();
      Log.d(LOG_PREFIX, "Response code " + response.getStatusCode() + " " + response.getStatusMessage() + " response: "+strResponse);
    } catch (IOException e) {
      Log.e(LOG_PREFIX, "Failed to post JSON ", e);
    }
      
  }
  
  /**
   * Get all registered devices from the NWCloud backend
   * 
   * @return
   */
  public static MobileDevice[] getRegisteredDevices() {
    HttpRequestFactory requestFactory =
            HTTP_TRANSPORT.createRequestFactory(new HttpRequestInitializer() {
                @Override
              public void initialize(HttpRequest request) {
                request.setParser(new JsonObjectParser(JSON_FACTORY));
              }
            });
    //the endpoint of the REST service
    GenericUrl url = new GenericUrl(BASE_BACKEND_URL +"api/mobiledevice/");

    HttpRequest request;
    try {
      request = requestFactory.buildGetRequest(url);
      HttpResponse response = request.execute();
      MobileDevice[] androidDevices = response.parseAs(MobileDevice[].class);
      return androidDevices;
    } catch (IOException e) {
      Log.e(LOG_PREFIX, "Failed to parse JSON ", e);
    }
    return null;
      
  }
  
  /**
   * Send a push message to the REST based interface
   * 
   * @param pushMessage
   * @return
   */
  public static PushMessageResponse sendMessage(PushMessageExternal pushMessage){
    PushMessageResponse pushMessageResponse=null;;
    HttpRequestFactory requestFactory =
            HTTP_TRANSPORT.createRequestFactory(new HttpRequestInitializer() {
                @Override
              public void initialize(HttpRequest request) {
                request.setParser(new JsonObjectParser(JSON_FACTORY));
              }
            });
    //the endpoint of the REST service
    GenericUrl url = new GenericUrl(BASE_BACKEND_URL +"api/messaging/");

    
    JsonHttpContent jsonContent = new JsonHttpContent(JSON_FACTORY, pushMessage);
      
    HttpRequest request;
    try {
      request = requestFactory.buildPostRequest(url, jsonContent);
      HttpResponse response  = request.execute();
      pushMessageResponse = response.parseAs(PushMessageResponse.class);
      pushMessageResponse.setResponseCode(response.getStatusCode());
      pushMessageResponse.setResponseMessage(response.getStatusMessage());
      
      Log.d(LOG_PREFIX, "Response code " + response.getStatusCode() + " " + response.getStatusMessage() + " response: "+pushMessageResponse);
    } catch (IOException e) {
      Log.e(LOG_PREFIX, "Failed to post JSON ", e);
    }
    
    return pushMessageResponse;
  }



  /**
   * Remove this device from the NWCloud
   * 
   * @param context
   * @return
   */
  public static boolean removeMyDevice(Context context) {
    try {
      String email = AndroidUtils.getPrimaryAccountEmail(context);
      email = URLEncoder.encode(email,"UTF-8");
      
      
      HttpRequestFactory requestFactory =
          HTTP_TRANSPORT.createRequestFactory(new HttpRequestInitializer() {
              @Override
            public void initialize(HttpRequest request) {
              request.setParser(new JsonObjectParser(JSON_FACTORY));
            }
          });
      //the endpoint of the REST service
      GenericUrl url = new GenericUrl(BASE_BACKEND_URL +"api/mobiledevice/"+email);
          
      Log.i(LOG_PREFIX, "Attempting to delete device through URL " + url);
      
      HttpRequest request;
      
      request = requestFactory.buildDeleteRequest(url);
      HttpResponse response = request.execute();
      int responseCode = response.getStatusCode();
      Log.i(LOG_PREFIX, "Response to HTTP Delete " + responseCode+ " "+response.getStatusMessage());
      if(responseCode ==200){
        return true;
      }else {
        return false;
      }
    } catch (IOException e) {
      Log.e(LOG_PREFIX, "Error while sending HTTP DELETE request", e);
    }
        
    return false;
  }

  

  /** Feed of Google+ activities. */
    public static class AndroidDeviceList {

      /** List of Google+ activities. */
      @Key()
      private List<MobileDevice> devices;

      public List<MobileDevice> getDevices() {
        return devices;
      }
    }





  
  
}

Java Source Code List

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